Composite drainage board

Abstract

The present invention discloses a composite drainage board, including a bottom plate, a cover plate, a support key, a ground film, a second reinforcing rib, a first fitting groove, a chimeric key, a first sandwich film and a second sandwich film. The composite drainage board is composed of a bottom plate and a cover plate, the bottom plate is composed of a support key and a ground film, the cover plate is composed of a chimeric key, a first sandwich film, a non-woven geotextile and a second sandwich film; the support keys are equidistantly distributed in parallel on the surface of the ground film, and the ground film is embedded with a second reinforcing rib, and the support keys are embedded with a symmetrically distributed first reinforcing rib; the non-woven geotextile is located between the first sandwich film and the second sandwich film, and the chimeric key is equidistantly distributed on the lower surface of the first sandwich film. The present invention effectively improves the strength of the bottom plate and the support key by respectively arranging the first reinforcing rib and the second reinforcing rib, and arranging the chimeric key is more conducive to the precise connection between the cover plate and the support key.

Description

Technical Field

[0001] The invention relates to the technical field of composite anti-drainage boards, in particular to composite anti-drainage boards. Background Art

[0002] The composite drainage board is composed of one or two layers of non-woven geotextile and a layer of three-dimensional synthetic geonet core with different structures. It is a composite structure with drainage and isolation functions. The composite drainage board is used for underground garage roof planting, roof planting, underground side wall protection, drainage, bottom plate drainage, tunnel waterproofing, drainage, highway slope protection, saline-alkali land, desert planting, and artificial lakes. The application function of the composite drainage board can be bent and constructed at will, quickly draining the static water of the waterproof layer and the water accumulation of the HDPE geomembrane, timely reducing the load of the main structure, protecting the waterproof layer and structure, and avoiding damage to the waterproof layer by soil backfill, plant root thorns, acid and alkali, underground insects and microorganisms. Combined with the waterproof layer, it plays a double waterproof and anti-seepage role, so that the waterproof layer isolates gas and prevents oxidation, greatly improving the life of the waterproof system. Flexible materials, high compressive and tensile strength, meet the elongation required for cracking and the facilities of the driving road. Durable materials meet the use of various planting roofs and can also be used for planting on the roofs of old buildings. The construction is simple and can also be used for planting on the roofs of old buildings.

[0003] After massive searches, the prior art was found, with publication number CN107542082A, which discloses a honeycomb composite drainage board, including a drainage board body, which is formed by three-layer co-extrusion and is composed of an upper plate, a lower plate and a drainage honeycomb core plate, and the drainage honeycomb core plate is set as the middle layer, and a number of drainage holes are evenly opened on the surfaces of the upper plate and the lower plate; an upper filter membrane is bonded to the bottom side of the upper plate, and a lower filter membrane is bonded to the upper side of the lower plate; the honeycomb holes of the drainage honeycomb core plate are filled with permeable fiber groups; the honeycomb composite drainage board is formed by three-layer co-extrusion and has high structural strength and is easy to process. Upper filter membranes and lower filter membranes are arranged on the upper plate and the lower plate to enhance the permeability effect and avoid clogging; the drainage honeycomb core plate is squeezed into the middle layer and the permeable fiber groups are filled in its honeycomb holes, which has good permeability, reliable quality and convenient construction.

[0004] To sum up, the existing composite drainage board needs to be pre-laid with ground film in actual application. The docking between the ground film and the covering film lacks an effective positioning mechanism. When the composite drainage board is subjected to forces in different directions, it is easy to produce misalignment, thereby reducing the waterproof performance. In addition, the structural strength of the existing composite drainage board is low. When used for laying on special-shaped surfaces, it is easy to cause pulling between the ground film and the covering film, thereby causing ruptures, affecting actual use. Summary of the invention

[0005] The purpose of the present invention is to provide a composite waterproof and drainage board to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a composite drainage board, comprising a bottom plate, a cover plate, a support key, a ground film, a second reinforcing rib, a first fitting groove, a fitting key, a first sandwich film and a second sandwich film, wherein the composite drainage board is composed of a bottom plate and a cover plate, the bottom plate is composed of a support key and a ground film, and the cover plate is composed of a fitting key, a first sandwich film, a non-woven geotextile and a second sandwich film;

[0007] The support keys are equidistantly and parallelly distributed on the surface of the ground film, and the second reinforcing ribs are embedded and installed inside the ground film, and the first reinforcing ribs are symmetrically distributed and embedded and plugged inside the support keys;

[0008] The nonwoven geotextile is located between the first sandwich membrane and the second sandwich membrane, and the chimeric keys are equidistantly distributed on the lower surface of the first sandwich membrane.

[0009] Preferably, the edge of the ground film is provided with first fitting grooves which are centrally symmetrically distributed, and the first fitting grooves are respectively located on the upper and lower surfaces of the ground film;

[0010] The groove depth of the first fitting groove is half of the ground film.

[0011] Preferably, the length of the support key is the same as the length of the ground membrane surface, and the first reinforcing ribs are respectively embedded and inserted into the upper and lower ends of the support key.

[0012] Preferably, the surfaces of the first and second sandwich films are both designed in a grid shape, and the surfaces of the first and second sandwich films on the opposite sides are coated with colloid;

[0013] After colloid is applied to the surfaces of the first interlayer and the second interlayer on the opposite side, the non-woven geotextile is arranged between the first interlayer and the second interlayer and pressed together.

[0014] Preferably, the cover plate is provided with second fitting grooves which are centrally symmetrically distributed at the edge thereof, and the second fitting grooves are respectively located at the upper and lower end surfaces of the cover plate.

[0015] Preferably, the second reinforcing ribs are distributed in a grid pattern inside the ground film, and the edges of the second reinforcing ribs are flush with the edges of the first fitting grooves.

[0016] Preferably, the embedding key corresponds to the supporting key in position, and an embedding groove is provided on the lower surface of the embedding key;

[0017] The engaging groove is matched with the outer wall of the upper end of the supporting key.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention respectively arranges the first reinforcing rib and the second reinforcing rib inside the support key and the ground membrane, which can effectively improve the mechanical strength of the support key and the ground membrane, and the first reinforcing rib and the second reinforcing rib can meet the deformation of the support key and the ground membrane. When applied to special-shaped surfaces, the support key and the ground membrane fully fit the concrete surface, which not only ensures good mechanical strength, but also effectively ensures the fit between the ground membrane and the support key.

[0019] In actual use, the engaging keys and the supporting keys can be precisely engaged. During the laying process, the base plate and the cover plate can be distributed orthogonally to the force direction, which can effectively prevent relative sliding between the base plate and the cover plate due to different force directions, ensuring a good fit between the base plate and the cover plate and the actual use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of a half-section structure of a bottom plate of the present invention;

[0021] Figure 2 It is a schematic diagram of the main cross-sectional structure of the bottom plate and the floating plate of the present invention;

[0022] Figure 3 It is a schematic diagram of the enlarged cross-sectional structure of the support key and the interlocking key of the present invention.

[0023] In the figure: 1, bottom plate; 11, support key; 12, first reinforcing rib; 13, ground film; 14, second reinforcing rib; 15, first fitting groove; 2, cover plate; 21, interlocking key; 22, first sandwich film; 23, non-woven geotextile; 24, interlocking groove; 25, second sandwich film; 26, second fitting groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figures 1 to 3 , the present invention provides three embodiments:

[0028] Embodiment 1:

[0029] The composite drainage board comprises a bottom plate 1, a cover plate 2, a support key 11, a ground film 13, a second reinforcing rib 14, a first fitting groove 15, a fitting key 21, a first sandwich film 22 and a second sandwich film 25. The composite drainage board is composed of the bottom plate 1 and the cover plate 2. The bottom plate 1 is composed of the support key 11 and the ground film 13. The cover plate 2 is composed of the fitting key 21, the first sandwich film 22, the non-woven geotextile 23 and the second sandwich film 25.

[0030] The edge of the ground film 13 is provided with a first fitting groove 15 which is centrally symmetrically distributed. The first fitting groove 15 is respectively located on the upper and lower surfaces of the ground film 13. The groove depth of the first fitting groove 15 is half of the ground film 13. The edge of the covering board 2 is provided with a second fitting groove 26 which is centrally symmetrically distributed. The second fitting groove 26 is respectively located on the upper and lower surfaces of the covering board 2. The first fitting groove 15 is conducive to the laying of the ground film 13. Adjacent ground films 13 can be interlocked through the first fitting groove 15, and the interlocking parts can be fixed by screws. The screws are screwed into the wall surface of the installation position to fix the ground film 13. The second fitting groove 26 is conducive to the mutual fitting of the covering boards 2. The joints of the covering boards 2 can be fixed by screws.

[0031] Embodiment 2:

[0032] The support keys 11 are equidistantly distributed in parallel on the surface of the ground film 13, and the second reinforcing ribs 14 are embedded and installed inside the ground film 13, and the first reinforcing ribs 12 are embedded and inserted symmetrically inside the support keys 11; the length of the support keys 11 is the same as the length of the surface of the ground film 13, the first reinforcing ribs 12 are respectively embedded and inserted inside the upper and lower ends of the support keys 11, and the second reinforcing ribs 14 are distributed inside the ground film 13 in a grid shape, and the edges of the second reinforcing ribs 14 are flush with the edges of the first fitting grooves 15. The first reinforcing ribs 12 and the second reinforcing ribs 14 can effectively improve the mechanical strength of the support keys 11 and the ground film 13, and the first reinforcing ribs 12 and the second reinforcing ribs 14 can meet the deformation of the support keys 11 and the ground film 13. When used on special-shaped surfaces, the support keys 11 and the ground film 13 can fully fit the concrete surface, which not only ensures good mechanical strength, but also effectively ensures the fit between the ground film 13 and the support keys 11.

[0033] Embodiment three:

[0034] The non-woven geotextile 23 is located between the first film 22 and the second film 25, and the engaging keys 21 are evenly distributed on the lower surface of the first film 22. The surfaces of the first film 22 and the second film 25 are both designed in a grid shape, and the surfaces of the first film 22 and the second film 25 on the opposite side are coated with glue. After the surfaces of the first film 22 and the second film 25 on the opposite side are coated with glue, the non-woven geotextile 23 is placed between the first film 22 and the second film 25 and pressed together.

[0035] The positions of the engaging keys 21 and the supporting keys 11 correspond, and engaging grooves 24 are provided on the lower surfaces of the engaging keys 21, and the engaging grooves 24 are matched with the outer walls of the upper ends of the supporting keys 11. The engaging keys 21 and the supporting keys 11 can be precisely engaged with each other, and during the laying process, the bottom plate 1 and the covering plate 2 can be distributed orthogonally to the force direction, which can effectively prevent relative sliding between the bottom plate 1 and the covering plate 2 due to different force directions, thereby ensuring good fit between the bottom plate 1 and the covering plate 2 and ensuring the effect of actual use.

[0036] Working principle: The first reinforcing rib 12 and the second reinforcing rib 14 can effectively improve the mechanical strength of the support key 11 and the ground membrane 13, and the first reinforcing rib 12 and the second reinforcing rib 14 can meet the deformation of the support key 11 and the ground membrane 13. When used on special-shaped surfaces, the support key 11 and the ground membrane 13 fully fit the concrete surface, which not only ensures good mechanical strength, but also effectively ensures the fit between the ground membrane 13 and the support key 11.

[0037] In actual use, the engaging key 21 and the supporting key 11 can be precisely engaged. During the laying process, the base plate 1 and the covering plate 2 can be distributed orthogonally to the force direction, which can effectively prevent relative sliding between the base plate 1 and the covering plate 2 due to different force directions, thereby ensuring a good fit between the base plate 1 and the covering plate 2 and guaranteeing the effect of actual use.

[0038] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A composite waterproof and drainage board, comprising a bottom plate (1), a cover plate (2), a second reinforcing rib (14), and a first fitting groove (15), characterized in that: The composite drainage board is composed of a base plate (1) and a cover plate (2), wherein the base plate (1) is composed of a support key (11) and a ground film (13), and the cover plate (2) is composed of a chimeric key (21), a first sandwich film (22), a non-woven geotextile (23) and a second sandwich film (25); The support keys (11) are equidistantly distributed in parallel on the surface of the ground film (13), and the ground film (13) is embedded with a second reinforcing rib (14) installed inside, and the support keys (11) are embedded with a symmetrically distributed first reinforcing rib (12) inserted inside; The non-woven geotextile (23) is located between the first sandwich membrane (22) and the second sandwich membrane (25), and the chimeric keys (21) are equidistantly distributed on the lower surface of the first sandwich membrane (22); The edge of the ground film (13) is provided with first fitting grooves (15) which are centrally symmetrically distributed, and the first fitting grooves (15) are respectively located on the upper and lower end surfaces of the ground film (13); The groove depth of the first fitting groove (15) is half of the ground film (13); The surfaces of the first sandwich film (22) and the second sandwich film (25) are both designed in a grid shape, and the surfaces of the first sandwich film (22) and the second sandwich film (25) on the opposite side are coated with glue; After the first sandwich film (22) and the second sandwich film (25) are coated with colloid on the surface of the opposite side, the non-woven geotextile (23) is placed between the first sandwich film (22) and the second sandwich film (25), and pressed together; The engaging key (21) corresponds to the supporting key (11) in position, and an engaging groove (24) is provided on the lower surface of the engaging key (21); The engaging groove (24) is adapted to fit the outer wall of the upper end of the supporting key (11).

2. The composite waterproof and drainage board according to claim 1 is characterized in that: The first reinforcing ribs (12) are respectively embedded and inserted into the interior of the upper and lower ends of the support key (11).

3. The composite waterproof and drainage board according to claim 1 is characterized in that: The cover plate (2) is provided with second fitting grooves (26) which are centrally symmetrically distributed at the edge thereof, and the second fitting grooves (26) are respectively located on the upper and lower end surfaces of the cover plate (2).

4. The composite waterproof and drainage board according to claim 1, characterized in that: The second reinforcing ribs (14) are distributed in a grid pattern inside the ground film (13), and the edges of the second reinforcing ribs (14) are flush with the edges of the first fitting grooves (15).

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